To understand the operation of combustion air openings, it’s a good idea to review some airflow basics. For airflow to move through a duct, there must be a pressure difference across it created by an external source. Traditional installations depend on natural forces to create this pressure difference.
A few months ago, I wrote a Duct Dynasty article on the ideal duct system. The most frequent comments and questions I received about this article were regarding branch takeoffs. So, I thought it would be fun to take a deeper look at branch duct takeoffs and how to overcome some of the most common problems associated with them.
This advanced and innovative pre-insulated HVAC ductwork system offers benefits, such as reduced installation time, low weight, space savings through flush-to-ceiling installation, increased performance, and energy efficiency. Ductwork fabricated from the Kingspan KoolDuct system can be installed indoors, outdoors, and concealed above false ceilings and below raised floors.
Depending on who you’re talking with, the phrase "green ductwork" can mean different things, though most agree it typically encompasses recycled materials, various IAQ elements, duct-sealing products, and more.
When purchasing a newly constructed home, homeowners assume all the appliances and electrical and mechanical systems will be working as they should because they’re brand new. However, with some houses, that may not be the case. If builders don’t take proper steps to cover ducts during construction, homeowners may be in for a rude awakening.
The NEWS’ Trainers Panel consists of some of the best HVAC educators, instructors, and trainers from across North America. Their insights will be used to answer technical questions from the field and suggest solutions to everyday problems faced by technicians.
Adding duct-cleaning services can bring in valuable new business and boost a contractor’s bottom line, but before a contractor enters the market, he or she needs to understand and commit to the time and costs involved in properly training and equipping their teams.
When high-end equipment does not live up to consumer expectations, the culprit is almost always improper installation. The bottom line: Properly sizing, selecting, and installing HVAC equipment is critical to ensuring energy efficiency and comfort.
With model building codes mandating tighter and tighter ductwork, and with homeowners and building owners desiring increasingly higher efficiencies from their ducted systems, many new products have hit the market to help builders and installers efficiently and effectively meet those requirements.